At inclusion all patients will have a standardised work-up including medical history, physical examination, blood and faeces samples and ileo-colonoscopy. Within two weeks MRI and CT scanning of the small intestine (on the same day and in randomised order) and subsequently CE will be performed in all patients. All investigations are described in a similar pre-defined and standardized fashion and the radiologist and physician responsible for describing the findings at MRI, CT and CE are blinded to the findings at ileo-colonoscopy and the other small bowel examinations. In the follow-up part of the study the physician in charge of the patient will be randomised to receive the results of either MRI, CT or CE.